Publication: Validity and reliability of an eight antennae ultra-wideband local positioning system to measure performance in an indoor environment
Authors
Bastida-Castilla, Alejandro ; Gómez-Carmona, Carlos David ; Rico-González, Markel ; Pino Ortega, José
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Publisher
Taylor & Francis
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DOI
https://doi.org/10.1080/14763141.2020.1830162
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info:eu-repo/semantics/article
Description
© 2020 Informa UK Limited
This document is the accepted version of a published work that appeared in final form in Sports Biomechanics.
This document is made available under the CC-BY-NC 4.0 license http://creativecommons.org/licenses/by-nc/4.0
To access the final edited and published work see:
https://doi.org/10.1080/14763141.2020.1830162
Abstract
oad and positioning. One of the most important parameters to
guarantee accurate measurements with radiofrequency systems is
the number of reference nodes used to calculate player position.
However, the accuracy of ultra-wideband (UWB) technology has
only been analysed with 6 antennae. So, the purpose of the present
study was to analyse the accuracy and inter-unit reliability of an
UWB system with eight antennae. Three well-trained males covered
18 trajectories for the analysis of x- and y- coordinate accuracy
assessment related to the positional variation among eight antennae
UWB data and lines on a basketball court. This was achieved
using geographical information system mapping software that calculated,
for each interval and participant, the distance from the
main axis of locomotion and the opposite side of the field every 0.5
s. The results showed that this is a valid system (Mean = 0.03 m;
magnitude differences = 0.21% with real measures as reference; %
CV <1% in all cases) for measuring locomotion and positioning.
Besides, the inter-unit, test-retest and inter-subject analysis did not
influence the reliability results. So, an eight antennae UWB system
can be considered suitable for locomotion and positioning in an
indoor environment.
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Citation
Sports Biomechanics, 23(2), 145–155.
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